[Ren is, unfortunately, busy with dumping the rest of the ingredients and the sauce into the pan, so he would have missed the dagger even if Shun hadn't been sort of hiding it when he came in and he's none-the-wiser when he cheerily answers the question.]

If you want to make a bet for if you win.

[Win at what is a thing he probably should mention too, and maybe he would have realized that if he hadn't finally glanced over at Shun and noticed what he was doing.]

...I don't think your dagger would be any worse off if you waited until tomorrow to do that...